Maxell Develops Coin Type All-Solid-State Battery “PSB2032” Suitable for Main Power Supply for IoT Devices

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TOKYO--(BUSINESS WIRE)--Dec 16, 2025--

Maxell, Ltd. (TOKYO: 6810) has developed the “PSB2032”, a coin type all-solid-state battery suitable for use as the main power source for IoT devices. Samples will be available in late December.

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Coin Type All-Solid-State Battery “PSB2032” (Sample)

In infrastructure facilities and factories, significant labor is required for monitoring the operational status of equipment and performing maintenance work on such equipment.
However, with the recent decline in the labor force, it is becoming increasingly difficult to maintain conventional practices. To improve the situation, there is a growing demand for automation and efficiency improvement through IoT and AI technologies. As a result, the adoption of IoT sensor devices equipped with communication functions that allow for continuous monitoring of equipment and facility conditions over extended periods without requiring human effort is progressing, along with the demand for power sources that offer greater capacity and higher reliability.
To meet these market needs, Maxell has newly developed the “PSB2032”, a coin type all-solid-state battery designed to be suitable as the main power source for IoT devices. The battery features 20 mm in diameter and 3.2 mm in height.

The newly developed “PSB2032” delivers a capacity of 35 mAh - approximately four times that of the ceramic- packaged "PSB401010H" currently in mass production, making it suitable for use as the main power source for IoT devices.
The “PSB2032” incorporates key features of Maxell’s all-solid-state batteries, such as a wide discharge temperature range, high reliability, and high safety, while maintaining the high sealing capability *1 equivalent to ceramic-packaged models. In addition, the “PSB2032” samples come pre-equipped with connection terminals *2　 suitable for mounting into small-sized devices, enabling Maxell’s all-solid-state batteries to accommodate different mounting methods.
For more details, please refer to the information here.

By combining with wireless power transfer and energy harvesting technologies, Maxell’s all-solid-state batteries will contribute to realizing a sustainable society.

*1 High sealing capability: Achieved a level of 10 -11 (Pa･m 3 /sec) in the helium leak test.
*2 Pre-equipped with connection terminals: This applies to the samples of “PSB2032” scheduled for release in late December 2025.

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The names, logos, and service marks mentioned herein are registered trademarks or trademarks of Maxell or their respective companies.

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CONTACT: Customer Inquiries

New Business Producing Div., Maxell, Ltd.

[email protected] Inquiries

Hitoshi Yamagata

PR&IR Dept., Maxell, Ltd.

[email protected]

KEYWORD: JAPAN ASIA PACIFIC

INDUSTRY KEYWORD: OTHER MANUFACTURING MOBILE/WIRELESS TECHNOLOGY OTHER ENERGY MANUFACTURING ENERGY BATTERIES HARDWARE IOT (INTERNET OF THINGS) ARTIFICIAL INTELLIGENCE

SOURCE: Maxell, Ltd.

Copyright Business Wire 2025.

PUB: 12/16/2025 08:00 AM/DISC: 12/16/2025 08:00 AM

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